Dalam 100 gram senyawa terdapat 40% kalsium, 12% karbon, dan 48% oksigen. Jika Ar Ca = 40, C = 12, dan O = 16, maka rumus empiris senyawa tersebut adalah ...
Ulangan Harian Stoikiometri

Quiz
•
Chemistry
•
1st Grade
•
Hard
Rika Fitariyanti
Used 15+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CaCO
CaCO2
CaCO3
Ca2CO3
CaCO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bila massa gas CO2 adalah 11 gram, maka volume gas CO2 pada keadaan STP adalah.... (Ar C = 12, O = 16)
5,6 liter
0,25 liter
1 liter
1,12 liter
4 liter
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mol dari 4,6 gram logam Natrium (Ar Na = 23) adalah ....
0,1
0,2
0,3
0,4
0,5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapa jumlah mol 44,8 L gas oksigen yang diukur pada keadaan standar (STP)?
2 mol
3 mol
4 mol
6 mol
12 mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Garam dengan rumus senyawa NaCl memiliki massa 585 gram. Jika Ar Na = 23 dan Ar Cl = 35,5, maka jumlah mol NaCl sebesar...
5 mol
10 mol
12 mol
15 mol
1 mol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapa massa molekul relatif (Mr) dari C2H5OH? Ar C= 12, O= 16, H= 1
45
46
29
36
16
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Nilai dari tetapan avogadro adalah..
6,02 x 10^23
60,2 x 10^23
6,02 x 10^22
60,2 x 10^22
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